CN107318854A - A kind of bactericidal composition containing bromothalonil and RH-7592 - Google Patents
A kind of bactericidal composition containing bromothalonil and RH-7592 Download PDFInfo
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- CN107318854A CN107318854A CN201710700364.4A CN201710700364A CN107318854A CN 107318854 A CN107318854 A CN 107318854A CN 201710700364 A CN201710700364 A CN 201710700364A CN 107318854 A CN107318854 A CN 107318854A
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- bromothalonil
- bactericidal composition
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/34—Nitriles
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of bactericidal composition containing bromothalonil and RH-7592, its active ingredient is bromothalonil and RH-7592 binary built.Wherein the mass ratio of bromothalonil and RH-7592 is 1~25: 25~1, the quality parts ratio 1%~80% of active ingredient bromothalonil and RH-7592 in preparation, remaining is the auxiliary element for allowing to use and receiving in agricultural chemicals, and the formulation of bactericidal composition of the present invention is missible oil, suspending agent, wettable powder, aqua, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.It is mainly used in the diseases such as preventing and treating cucumber, downy mildew of garpe, gray mold.
Description
Technical field
The present invention relates to technical field of pesticide combination, more particularly to a kind of Bactericidal composite containing bromothalonil and RH-7592
Thing.
Background technology
Bromothalonil be a kind of wide spectrum, efficiently, the bactericide of low toxicity, can suppress and root out fungi, bacterium, the growth of algae,
There is preferable prevention effect to corps diseases, have special efficacy to anthracnose.It is widely used in fruit tree, grape, vegetables, cotton, flower
The various crops such as life, watermelon, tobacco, tea tree, flowers, prevent and treat anthracnose, scab, shot hole, powdery mildew, rust, damping-off,
A variety of fungoids such as samping off, rhizome maize ear rot, canker, bacterial wilt, angular leaf spot, bacteroidal disease.Application mode is flexible, leaf
Face spraying, seed treatment and soil pouring root, all show preferable preventive effect.
RH-7592 is called azoles bacterium nitrile, cyanophenyl azoles, is triazole type systemic fungicide, and the germ spore germinateed can be prevented to invade
Crop plant tissue, suppresses the elongation of mycelia.Used in germ incubation period, the development of germ can be prevented；Used after morbidity, under making
Generation spore is deformed, and loses infection ability, has prevention effect and therapeutic action to disease.Chemical structural formula：
It is the maximally efficient means of controlling plant diseases using chemical agent.But apply single long-term continuous high dose
Chemical bactericide, the problems such as residual, environmental pollution and the resistance to resistance to the action of a drug fungi for easily causing medicament are developed.Rational chemistry
Bactericide compounded or mixture have expand fungicidal spectrum, improve prevention effect, extension the optimum period for applying fertilizer, reduce dosage, reduction poisoning,
Reduce residual, delay Antifungal resistance and drug-fast generation and the positive feature such as development, bactericide compounded is to solve above-mentioned ask
One of maximally efficient method of topic.Develop new product bactericide price constantly rises, and by contrast, exploitation with research efficiently,
Low toxicity, the compounding of low-residual and mixture has small investment, the lead time is short and is paid attention to both at home and abroad, numerous and confused increase develop
Dynamics.We screen and on the basis of field test, filter out bromothalonil and compounded with RH-7592 indoors, with obvious
Synergistic effect.And there is no people to report at present on the bactericidal composition and application of bromothalonil and the compounding of RH-7592.
The content of the invention
Based on case above, present invention aims at provide a kind of new and effective pesticide sterilizing composite.It is mainly used in
Prevent and treat the diseases such as cucumber, downy mildew of garpe, gray mold.
Technical scheme of the present invention is realized by following measures：
A kind of bactericidal composition containing bromothalonil and RH-7592, active ingredient bromothalonil and the nitrile benzene of the bactericidal composition
Azoles two-spot is compounded, and remaining is auxiliary element.The mass ratio of active ingredient bromothalonil and RH-7592 in wherein described bactericidal composition
For 1~25: 25~1, described bactericidal composition of the present invention is through toxicity test experimental verification, the mass ratio of bromothalonil and RH-7592
For 1~10: 10~1 when, synergistic effect is preferable.
The formulations of pesticide that described bactericidal composition of the present invention can be prepared are missible oil, suspending agent, wettable powder, water
Agent, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.Wherein active ingredient bromothalonil and RH-7592 is in preparation
In gross mass account for the 1%~80% of the whole quality of the pharmaceutical preparations, wherein when accounting for 10%~60%, toxicity and residual reach preferably flat
Weighing apparatus, cost is relatively low.
The specific embodiment for the formulations of pesticide that bactericidal composition of the present invention is configured to is as follows：
Described bactericidal composition is cream preparation, and the mass fraction of component is：1~25 part of bromothalonil；RH-7592 1~25
Part；10~30 parts of conventional emulsifier；20~50 parts of Conventional solvents；Conventional 1~5 part of synergist.The specific production of the cream preparation
Step stirs equal to add emulsifying agent, synergist after being first completely dissolved in active ingredient bromothalonil and RH-7592 addition solvent
It is filling into the oily liquids of transparent and homogeneous after even, you can the cream preparation of the present composition is made.
Described bactericidal composition is suspending agent, and the mass fraction of component is：1~25 part of bromothalonil；RH-7592 1~25
Part；5~20 parts of dispersant；1~5 part of antifreezing agent；0.1~2 part of thickener；0.1~0.8 part of defoamer；0~10 part of penetrating agent；
0.1~5 part of pH value regulator；Water, surplus.The specific production stage of the suspending agent is cut first to mix other auxiliary agents through high speed
Well mixed, addition active ingredient bromothalonil and RH-7592, abrading-ball 2~3 hours in ball crusher are cut, make a diameter in 5mm
Below, you can the aqueous suspension formulations of the present composition are made.
Described bactericidal composition is wettable powder, and the mass fraction of component is：1~25 part of bromothalonil；RH-7592 1~
25 parts；3~10 parts of dispersant；1~5 part of wetting agent；Filler, surplus.The specific production stage of the wettable powder is：By above-mentioned
Formula mixes active ingredient bromothalonil with RH-7592 and dispersant, wetting agent and filler, the uniform stirring in stirred tank, warp
Remixed after airslide disintegrating mill uniform, you can the wettable powder of the present composition is made.
Described bactericidal composition is water dispersible granules, and the mass fraction of component is：1~25 part of bromothalonil；RH-7592 1~
25 parts；3~10 parts of dispersant；1~10 part of wetting agent；1~5 part of disintegrant；Filler, surplus.The specific life of the water dispersible granules
Producing step is：Active ingredient bromothalonil is mixed with RH-7592 and dispersant, wetting agent, disintegrant and filler by above-mentioned formula
Uniformly, crushed with micro jet, through mediating, then add and granulated in fluidized-bed granulation dryer, dry, sieve
By sampling analysis, you can the water dispersible granules of the present composition are made.
Described bactericidal composition is aqueous emulsion, and the mass fraction of component is：1~25 part of bromothalonil；RH-7592 1~25
Part；3~30 parts of emulsifying agent；5~15 parts of solvent；2~15 parts of stabilizer；1~5 part of antifreezing agent；0.1~8 part of defoamer；Thickener
0.2~2 part；Water, surplus.The specific production stage of the aqueous emulsion is：First by bromothalonil and RH-7592, solvent and emulsifying agent,
Cosolvent is added together, and makes to be dissolved into uniform oil phase；By part water, antifreeze, other insecticides adjuvants such as antimicrobial
Mix into uniform aqueous phase；Oil phase is added into aqueous phase while high-speed stirred in a kettle., slowly added water until reaching
To phase inversion point, open cutter and carry out high speed shear, and add remaining water, shearing about half an hour, form the water of oil-in-water type
Emulsion, you can the aqueous emulsion of the present composition is made.
Described bactericidal composition is microemulsion, and the mass fraction of component is：1~25 part of bromothalonil；RH-7592 1~25
Part；10~30 parts of emulsifying agent, 1~8 part of antifreezing agent, 0.5~10 part of stabilizer, 20~50 parts of Conventional solvents cosolvent.By bromine bacterium
Nitrile is completely dissolved with RH-7592 with cosolvent, adds the other compositions such as emulsifying agent, antifreezing agent, stabilizer, uniform mixing, finally
Water is added, microemulsion can be made into after being sufficiently stirred for.
Described bactericidal composition is granule, and the mass fraction of component is：1~25 part of bromothalonil；RH-7592 1~25
Part；1~10 part of wetting dispersing agent；0.1~5 part of thickener；0.1~5 part of defoamer；Castor oil, surplus is supplied.By active ingredient
The each component such as bromothalonil and RH-7592, dispersant, stabilizer, defoamer and solvent is mixed in the ratio of formula, is put into sand milling kettle
After interior grinding, mix and get product in feeding mixer for well-distribution.
Described bactericidal composition is aqua, and the mass fraction of component is：1~25 part of bromothalonil；1~25 part of RH-7592；
0.1~30 part of wetting dispersing agent；2~8 parts of antifreezing agent；0.1~1 part of defoamer；0.1~3 part of thickener；5~15 parts of spreader-sticker；
Water, surplus is supplied.Active ingredient bromothalonil is completely dissolved with RH-7592, with cosolvent, dispersant, antifreezing agent is added, disappears
The other compositions such as infusion, uniform mixing, are eventually adding water, after being sufficiently stirred for, you can obtain finished product.
Described bactericidal composition is microcapsule formulations, and the mass fraction of component is：1~25 part of bromothalonil；RH-7592 1~25
Part；5~20 parts of urea；5~20 parts of formaldehyde；5~20 parts of emulsifying dispersant；1~5 part of antifreezing agent；0.1~2 part of thickener；Froth breaking
0.1~0.8 part of agent；Water, surplus.Urea and formaldehyde are added in the three-necked flask equipped with agitating device, and (the amount ratio of material is about
l：1.5~2.0), the pH value for adjusting solution with sodium hydroxide solution then heats to 70~80 DEG C, reacted to 8~9 or so
To stable urea resin prepolymer.Take a certain amount of bromothalonil to be dissolved in RH-7592 in hexamethylene, and add breast in the solution
Change dispersant, with being stirred vigorously, be made into the O/W type stable emulsions using the aqueous solution containing emulsifying dispersant as aqueous phase.Will be above-mentioned
Urea resin prepolymer add emulsion in, adjust pH value, occur polymerisation under acid catalysed conditions, wrapped oil phase substance
Wrap, form microcapsule granule.Slow heating, solidification, temperature control is in 40~50 DEG C, hardening time 1h.Selection adds suitable
The auxiliary agent of amount, you can the microcapsules that must stablize.
Wherein above-described emulsifying agent is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkyl phenol polyoxy
Ethene ether sulfosuccinates, styrylphenol polyoxyethylene ether, NPE, castor oil polyoxyethylene ether,
Aliphatic acid polyethenoxy base ester, any one of polyoxyethylene aliphatic alcohol ether or more than one any mixtures than composition.
Described solvent is dimethylbenzene or biodiesel, toluene, diesel oil, methanol, ethanol, n-butanol, isopropanol, rosin-based
Vegetable oil code name is ND-45, and solvent naphtha, dimethylformamide, dimethyl sulfoxide (DMSO), the one or more in water equal solvent are appointed
Anticipate than the mixture of composition.
It is LG-3, GY-D1252, GY-D1256, SNWGF-01, lignin that described dispersant, which is selected from polycarboxylate code name,
Sulfonate code name is 201107,201108, APES methyl ether condensate sulfate, alkylsulfonate calcium salt, naphthalene
Sulfonic formaldehyde condensation compound sodium salt, APES, polyoxyethylene carboxylate, aliphatic amine polyoxyethylene ether, glyceride
One or more of fat acid ester polyoxyethylene ether.
Described wetting agent is selected from lauryl sodium sulfate, and calcium dodecyl benzene sulfonate, Nekal BX moistens bleeding agent F,
One or more in alkylbenzenesulfonate polyoxyethylene triphen phosphenylic acid salt dimly, spaonin powder, silkworm excrement, spaonin powder.
Described disintegrant is selected from bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, sodium acid carbonate
It is one or more.
Described thickener be selected from xanthans, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, Magnesiumaluminumsilicate,
It is one or more in polyvinyl alcohol.
Described stabilizer is selected from one kind in sodium citrate, resorcinol.
Described antifreezing agent is selected from the one or more in ethylene glycol, propane diols, glycerine.
Described defoamer is selected from silicone oil, silicone compound, C10-20Saturated fat acids compound, C8-10Fatty alcohol
It is one or more.
Described filler is selected from kaolin, diatomite, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate
One or more.
The present invention has obvious synergistic effect using bromothalonil and RH-7592 as the composite bactericide of active ingredient, and delaying will
Evil is drug-fast to be produced, and reduces into production cost and use cost, is mainly used in preventing and treating cucumber, downy mildew of garpe, gray mold
Etc. disease.
Embodiment
To make technical scheme, purpose and advantage are more clearly understood, present invention specific examples below
Illustrate, but the present invention is not limited to these examples.The effect experiment of the present invention uses indoor biometricses and field test phase
With reference to mode, unless otherwise instructed, ratio mentioned below is all quality parts ratio.
Embodiment：Bromothalonil is tested with RH-7592 different ratio co-toxicity.
1.1 reagent agent
98% RH-7592 active compound, 90% bromothalonil active compound, above-mentioned active compound is researched and developed by extra large rel medicine company limited company
Portion is provided.
1.2 experiment targets
From Shandong Shouguang never applied bromothalonil and the cucumber of RH-7592 and same type it is potted plant gather and separate, it is yellow for examination
Melon kind：Chang Chun Mi Ci.
1.3 test method
1.3.1 medicament is prepared
Acetone solution active compound is first used, two appropriate active compounds are made into by several different ratios according to the result of preliminary experiment,
Each processing is diluted to several concentration gradients respectively with acetone again stand-by.
By the cultivation of susceptible cucumber variety Chang Chun Mi Ci in pot for growing seedlings, it is placed in greenhouse and cultivates, plant grows to three to four leaves
After phase, the blade of identical leaf age, culture and measure for gray mold of cucumber germ are gathered.
1.3.2 the culture of gray mold of cucumber germ and the preparation of spore suspension
Gray mold of cucumber germ is cultivated using plants method under conditions of 20 DEG C, 12h alternation of light and darkness, and generation is turned per 30d
Culture 1 time.With the conidium on sterile water elution incidence of leaf during inoculation, spore concentration is configured to for l × 106Individual/mL's
Suspension.
1.3.3 strains tested sensitivity testing
Toxicity test is carried out using leaf dish moisturizing method.The blade of collection is first prepared into a diameter of 1.5cm leaf dish, at random
Mix, be respectively placed in the series concentration decoction configured and soak lh, each 25 leaf dishes of concentration are tested with the place of not adding medicine
Manage as blank control, after immersion terminates, leaf is face-up placed on the blotting paper of identical liquor strength wetting, in leaf dish
Decoction blot, by the spore suspension l0L prepared be inoculated in leaf dish center, room temperature place 5min after, be placed in 20 DEG C, 12h
Cultivated under conditions of alternation of light and darkness, the onset area after 10d in measurement leaf dish calculates EC50。
The toxicity test of mixture is carried out according to mixed ratio with single dose toxicity test method.
According to the abundant methods of Sun Yun by the EC of each processing of measure50Value is converted into actual mixed toxicity index (ATI)；According to mixture
Proportioning, obtain theoretical mixed toxicity index (TTI), the co-toxicity coefficient (CTC) of mixture calculated by following equation.
Single dose toxicity index=(standard agent EC50/ reagent agent EC50)*100；
ATI=(standard agent EC50/ reagent agent (mixed) EC50)*100；
Toxicity index X B contents in mixed of the TI I=A toxicity index X A in content (%)+B in mixed
(%)；
CTC=(ATI/TTI) * 100；
If co-toxicity coefficient is big by 120, show there is synergistic effect；If significantly lower than 100 (less than 80), being shown to be antagonism；
Between 100~120, summation action is shown to be.
2.1 toxicity test results
The RH-7592 of table 1 and toxicity test of the bromothalonil to gray mold of cucumber
As can be seen from the table, the result of the test of different proportion proportioning shows, equal table is diluted respectively in active ingredient ratio
Reveal stronger synergistic effect, wherein using bromothalonil and RH-7592 as 1:10~10:The good suggestion of synergistic effect is to suitable when 1
Proportioning 1:10~10:1 or so mixture preparation carries out further field control effectiveness test, to evaluate its field practical application effect.
3. field test prevents and treats cucumber downy mildew
3.1 test method
Twice, equivalent clear water is sprayed in check plot to the common dispenser of experiment.When making up a prescription, after first medicament is fully dissolved with a small amount of water, then
Add suitable quantity of water and carry out complete stool spraying treatment, even spraying.During spray use power driven sprayer, operating pressure be 0.3~
0.4MPa, shower nozzle aperture 1.3mm.Cell spouting liquid is 40~50kg/667m2, continuous dispenser twice, 10 days intervals, by medicine
Liquid uniformly sprays application to crop complete stool.
3.2 investigation method
Shandong Shouguang is experimental field located at, the plastic tent cucumber for selecting natural occurrence is experimental field, and soil fertility is medium, irrigation and drainage side
Just.Using bilinear sampling method, take at 5 points per cell, look into 5 caves at every, every plant of fixed 2 blades in middle part carry out fixed point inspection during investigation
Look into.
It is classified according to cucumber downy mildew grade scale, record total strain number, diseased plant number, severity, calculating diseased plant rate,
Disease index and preventive effect.
Cucumber downy mildew grade scale is：
0 grade：Blade disease-free spot；
1 grade：Lesion area accounts for less than the 5% of whole leaf area；
3 grades：Lesion area accounts for the 6%~10% of whole leaf area；
5 grades：Lesion area accounts for the 11%~25% of whole leaf area；
7 grades：Lesion area accounts for the 26%~50% of whole leaf area；
9 grades：Lesion area accounts for more than the 50% of whole leaf area.
Disease index is investigated before 3 times, i.e. medicine of investigation altogether for experiment, after the 1st medicine after preventive effect investigation in 10 days, 2 medicines 10 days and
Preventive effect investigation in 20 days.
3.3 poisoning are investigated
Whether continuous 7d range estimations medicament has poisoning to crop after dispenser.
3.4 drug effect computational methods
Sick leaf rate (the %)=disease number of sheets/investigation total number of sheets × 100
Disease index=∑ (the sick numbers of sheets at different levels × relative value of series)/(investigation total number of sheets × 9) × 100
Prevention effect (%)=(1- (disease index after disease index × treatment region medicine before blank district medicine)/(blank pair
According to disease index before disease index after area's medicine × treatment region medicine)) × 100.
3.4 field control effectiveness test result of the tests
Each test medicine of table 2 prevents and treats the experiment effect of cucumber downy mildew
As shown in Table 2, bromothalonil combines the effect of preventing and treating cucumber downy mildew with RH-7592 mixture than more significant, complex preparation
Effect be significantly better than two kinds of single doses, not only significantly improve the prevention effect for downy mildew, and further extend it
Lasting period, and produced under the observation of continuous 7 days without poisoning.
Interpretation of result：
In summary, the bactericidal composition of the invention containing bromothalonil and RH-7592, has very to cucumber downy mildew, gray mold
Good prevention effect, and it is to Target crops safety.Complex preparation not only increases preventive effect, and expands fungicidal spectrum, widens
Using scope, cost is reduced, multiple diseases are played a part of with a medicine is simultaneous to be controlled, mitigates manpower and materials, productivity effect is improved.Institute
So that the invention of this complex preparation is of great significance with promoting to society's tool.
Claims (4)
1. a kind of bactericidal composition containing bromothalonil and RH-7592, it is characterised in that：The active ingredient of the bactericidal composition is
Bromothalonil and RH-7592 binary built, remaining is auxiliary element, wherein the mass ratio of active ingredient bromothalonil and RH-7592 be 1~
25: 25~1.
2. bactericidal composition according to claim 1, it is characterised in that：Bromothalonil and the gross weight of RH-7592 in the formulation
Account for the 1%~80% of the whole quality of the pharmaceutical preparations.
3. bactericidal composition according to claim 2, it is characterised in that：Bromothalonil and the gross weight of RH-7592 in the formulation
Account for the 5%~60% of the whole quality of the pharmaceutical preparations.
4. the bactericidal composition according to claim 1 or 2 or 3, it is characterised in that：The formulation of the bactericidal composition is breast
Oil, suspending agent, aqua, wettable powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109953019A (en) * | 2017-12-25 | 2019-07-02 | 江苏托球农化股份有限公司 | A kind of bromothalonil wettable powder and preparation method thereof |
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2017
- 2017-08-16 CN CN201710700364.4A patent/CN107318854A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109953019A (en) * | 2017-12-25 | 2019-07-02 | 江苏托球农化股份有限公司 | A kind of bromothalonil wettable powder and preparation method thereof |
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Application publication date: 20171107 |